advantage of the great power of evaporation in con-densing vapors in distillation. It is well known that ittakes about 1,000 degrees of heat to evaporate water ;that is to say, 1,000 degrees of heat passed into waterwill convert it into vapor of the same temperature as thewater. If a hot liquid is… … Lums Power-accumulating Windmill.—Wewould respectfully inform Le Genie Industriel that itsdescription of Lums Power-accumulating Wind-mill betrays, on the part of the translator, an entiremisapprehension of the nature of the invention, Themachinery is driven by just the force of the weight,neither…